Capacity of Antarctic lichen Xanthoria elegans to synthetize photoprotective secondary compounds is affected by supplemetary UV-B doses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F14%3A00076586" target="_blank" >RIV/00216224:14310/14:00076586 - isvavai.cz</a>

Výsledek na webu

<a href="http://polar.prf.jcu.cz/conference_MATERIALS.htm" target="_blank" >http://polar.prf.jcu.cz/conference_MATERIALS.htm</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Capacity of Antarctic lichen Xanthoria elegans to synthetize photoprotective secondary compounds is affected by supplemetary UV-B doses

Popis výsledku v původním jazyce

Lichen thalli of X. elegans were collected at James Ross Island (Antarctica). They were dried under natural field conditions and then transported to the laboratory in Brno, Czech Republic. Before experiments, the thalli were re-wetted for 48 h by demineralized water and wet cellulose sheet located beneath the thalli. During re-wetting, the thalli were exposed to a dim light (20 micromol m-2 s-1 of PAR) at 5oC. Duration of exposition to free supplemental UV-B was 7 days. Three different intensities of UV-B radiaton were used (0.9 W.m-2, 1.4 W.m-2 and 3.0 W.m-2, in the second cycle 0.9 W.m-2, 1.15 W.m-2, 1.4 W.m-2). Samples for further analysis were taken during the exposition after 5, 10, 24, 48 and 168 h. During the exposition chlorophyll fluorescenceparameters were measured using an approach of Kautsky kinetics supplemented with quenching analysis.

Název v anglickém jazyce

Capacity of Antarctic lichen Xanthoria elegans to synthetize photoprotective secondary compounds is affected by supplemetary UV-B doses

Popis výsledku anglicky

Lichen thalli of X. elegans were collected at James Ross Island (Antarctica). They were dried under natural field conditions and then transported to the laboratory in Brno, Czech Republic. Before experiments, the thalli were re-wetted for 48 h by demineralized water and wet cellulose sheet located beneath the thalli. During re-wetting, the thalli were exposed to a dim light (20 micromol m-2 s-1 of PAR) at 5oC. Duration of exposition to free supplemental UV-B was 7 days. Three different intensities of UV-B radiaton were used (0.9 W.m-2, 1.4 W.m-2 and 3.0 W.m-2, in the second cycle 0.9 W.m-2, 1.15 W.m-2, 1.4 W.m-2). Samples for further analysis were taken during the exposition after 5, 10, 24, 48 and 168 h. During the exposition chlorophyll fluorescenceparameters were measured using an approach of Kautsky kinetics supplemented with quenching analysis.

Druh

O - Ostatní výsledky

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

<a href="/cs/project/LM2010009" target="_blank" >LM2010009: Projekt CzechPolar - České polární stanice: Stavba a operační náklady</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů